Search a number
-
+
149018907 = 3291712861
BaseRepresentation
bin10001110000111…
…01100100011011
3101101101221111210
420320131210123
5301122101112
622441554203
73456432312
oct1070354433
9341357453
10149018907
1177132124
1241aa5963
1324b4748b
1415b11279
15d138b3c
hex8e1d91b

149018907 has 8 divisors (see below), whose sum is σ = 205543440. Its totient is φ = 95920160.

The previous prime is 149018899. The next prime is 149018927. The reversal of 149018907 is 709810941.

It is a happy number.

149018907 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 149018907 - 23 = 149018899 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (149018927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 856344 + ... + 856517.

It is an arithmetic number, because the mean of its divisors is an integer number (25692930).

Almost surely, 2149018907 is an apocalyptic number.

149018907 is a deficient number, since it is larger than the sum of its proper divisors (56524533).

149018907 is a wasteful number, since it uses less digits than its factorization.

149018907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1712893.

The product of its (nonzero) digits is 18144, while the sum is 39.

The square root of 149018907 is about 12207.3300520630. The cubic root of 149018907 is about 530.1683421575.

The spelling of 149018907 in words is "one hundred forty-nine million, eighteen thousand, nine hundred seven".

Divisors: 1 3 29 87 1712861 5138583 49672969 149018907